<!DOCTYPE html>
<html lang="en"  xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>login</title>
</head>
<body>

    <h1> this is login</h1>

    <form method="post" id="user" onsubmit="return checkForm()">
    <div >
        用户名test：<input type="text" placeholder="请输入用户名1" name="username1" /> <br>

        用户名：<input type="text" placeholder="请输入用户名" name="username" id="username"  /> <br>
    密码：<input type="password" placeholder="请输入密码"  name="password" /><br>

        <button type="submit"  name="提 交"  onsubmit="/login"> 提交</button>
    </div>    </form>

<div >  thymeleaf : <div   ></div></div>

</body>

<script>



</script>
</html>